better py3 support

diff --git a/src/util/gnunet-qr.py.in b/src/util/gnunet-qr.py.in
index ced7a5441155a0222c8ddcaa0c3506b6ef9155f9..549ce5af1c7f566dfe5ccbc73c411ae71f5eaf5a 100755 (executable)
--- a/src/util/gnunet-qr.py.in
+++ b/src/util/gnunet-qr.py.in
@@ -6,11 +6,11 @@ from sys import argv
 try:
        import zbar
 except ImportError as e:
-       print 'Cannot run gnunet-qr, please install zbar-python'
+       print('Cannot run gnunet-qr, please install zbar-python')
        sys.exit (1)
 
 def help ():
- print 'gnunet-qr\n\
+ print('gnunet-qr\n\
 Scan a QR code using a video device and import\n\
 Arguments mandatory for long options are also mandatory for short options.\n\
   -c, --config=FILENAME      use configuration file FILENAME\n\
@@ -20,7 +20,7 @@ Arguments mandatory for long options are also mandatory for short options.\n\
   -v, --verbose                                                         be verbose\n\
 Report bugs to gnunet-developers@gnu.org.\n\
 GNUnet home page: http://www.gnu.org/software/gnunet/\n\
-General help using GNU software: http://www.gnu.org/gethelp/'
+General help using GNU software: http://www.gnu.org/gethelp/')
 
 
 if __name__ == '__main__':
@@ -34,7 +34,7 @@ if __name__ == '__main__':
                opts, args = getopt.gnu_getopt(sys.argv[1:], "c:hd:sv", ["config","help", "device","silent","verbose"])
        except getopt.GetoptError as e:
                help ()
-               print str (e)
+               print(str (e))
                exit (1)
        for o,a in opts:
                if o in ("-h", "--help"):
@@ -49,7 +49,7 @@ if __name__ == '__main__':
                elif o in ("-v", "--verbose"):
                        verbose = True                  
        if (True == verbose):
-               print 'Initializing'
+               print('Initializing')
        # create a Processor
        proc = zbar.Processor()
 
@@ -59,10 +59,10 @@ if __name__ == '__main__':
        # initialize the Processor
        try:
                if (True == verbose):
-                       print 'Opening video device ' + device
+                       print('Opening video device ' + device)
                proc.init(device)
        except Exception as e:
-               print 'Failed to open device ' + device
+               print('Failed to open device ' + device)
                exit (1)
        
        # enable the preview window
@@ -75,7 +75,7 @@ if __name__ == '__main__':
        # read at least one barcode (or until window closed)
        try:
                if (True == verbose):
-                       print 'Capturing'
+                       print('Capturing')
                proc.process_one()
        except Exception as e:
                # Window was closed without finding code
@@ -88,7 +88,7 @@ if __name__ == '__main__':
        for symbol in proc.results:
                # do something useful with results
                if (True == verbose):
-                       print 'Found ', symbol.type, ' symbol ', '"%s"' % symbol.data
+                       print('Found ', symbol.type, ' symbol ', '"%s"' % symbol.data)
                args = list()
                args.append("gnunet-uri")
                if (configuration != ''):
@@ -98,11 +98,11 @@ if __name__ == '__main__':
                for a in args:
                        cmd += " " + str(a)
                if (verbose):
-                       print 'Running `' + cmd +'`'
+                       print('Running `' + cmd +'`')
                res=subprocess.call(args)
                if (0 != res):
-                       print 'Failed to add URI ' + str(symbol.data)
+                       print('Failed to add URI ' + str(symbol.data))
                else: 
-                       print 'Added URI ' + str(symbol.data)
+                       print('Added URI ' + str(symbol.data))
                exit (res)
        exit (1)